Canon Kabushiki Kaisha

Kota Nakano

Tosiya Asano

Kazuhiko Fukutani

Akira Asai

Ryuichi Nanaumi

Takuro Miyasato

Kazuhito Oka

Jumpei Shirono

Kenji Mitsuhashi

Employed is an information acquisition apparatus which acquires characteristic information about an object using a reception signal of acoustic waves generated by the object that is irradiated with light, the apparatus having: region acquisition unit for acquiring information indicating a plurality of regions of mutually different characteristics, in the object; sound velocity determination unit for determining sound velocity in the plurality of regions, using the information indicating the plurality of regions; and characteristic information acquisition unit for acquiring the characteristic information about the object, using the sound velocity and the reception signal.

Information acquisition apparatus and signal processing method

A feedback control device that takes information regarding a control deviation between a measured value and a desired value of a controlled object as input, and outputs a manipulated variable for the controlled object, includes: a first control unit that takes information regarding the control deviation as input, and outputs a manipulated variable for the controlled object; a second control unit that takes information regarding the control deviation as input, and that includes a learning control unit in which a parameter for outputting a manipulated variable for the controlled object is determined by machine learning; and an adder that adds a first manipulated variable output from the first control unit and a second manipulated variable output from the second control unit. A manipulated variable from the adder is output to the controlled object, and the second control unit includes a limiter that limits the second manipulated variable.

Control device, lithography apparatus, measurement apparatus, processing apparatus, planarizing apparatus, and article manufacturing method

Control device for generating a control deviation via machine learning

Back projection voxels smaller in size than forward projection voxels are created. Back projection is performed by the use of computed pixel values and measured pixel values at intersection points between straight lines connecting an X-ray source with the centroids of the back projection voxels and an X-ray detection panel.

Information processing apparatus, image reconstruction method, and computer-readable medium

During an incompressible fluid movement, three consecutive times during the movement of the fluid are called first, second, and third times in time order, calculation is performed with two different types of lattices for the first and third times and for the second time. Momentum and mass density at the first time are temporally developed to the third time in accordance with a conservation law by using an upwind velocity field. A pressure at the second time is determined so that a velocity field derived from momenta at the third time satisfies an incompressibility condition, and the field at the third time is corrected by adding a change in momentum caused by a pressure term using the determined pressure. This prevents pressure vibration and avoids the complexity of advective term calculation.

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Tokyo, Japan

Kota Nakano